/* $NetBSD: dislodgefd.c,v 1.1 2023/10/13 18:46:22 ad Exp $ */
/*-
* Copyright (c) 2023 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/socket.h>
#include <sys/un.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <err.h>
pthread_barrier_t barrier;
int fds[2];
static void *
reader(void *cookie)
{
char buf[1];
(void)pthread_barrier_wait(&barrier);
printf("reader(): commencing read, this should error out... after 1s\n");
if (read(fds[0], buf, sizeof(buf)) == -1)
err(1, "read");
printf("reader(): read terminated without error??\n");
return NULL;
}
int
main(int argc, char *argv[])
{
pthread_t pt;
if (argc > 1 && strcmp(argv[1], "pipe") == 0) {
if (pipe(fds))
err(1, "pipe");
} else {
if (socketpair(PF_LOCAL, SOCK_STREAM, 0, fds) < 0)
err(1, "socketpair");
}
pthread_barrier_init(&barrier, NULL, 2);
if (pthread_create(&pt, NULL, reader, NULL)) {
errx(1, "pthread_create failed");
}
(void)pthread_barrier_wait(&barrier);
sleep(1);
printf("main(): closing the reader side fd..\n");
close(fds[0]);
printf("main(): sleeping again for a bit..\n");
sleep(1);
printf("main(): exiting.\n");
return 0;
}
